Thirteen people died in 2017 after being hit by vehicles in the Coachella Valley. That's down from 29 fatalities in 2016.
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The California Highway Patrol released a photo of an SUV that passed the scene of a fatal crash Saturday morning in Coachella. Investigators say the driver may have witnessed the crash and need help finding the person.(Photo: California Highway Patrol)

Investigators are looking for a driver who may have witnessed a crash that killed an El Centro woman Saturday morning in Coachella.

The crash happened just after 6 a.m. on the Highway 86 Expressway at Dillon Road, according to the California Highway Patrol. A Nissan Maxima was on northbound Highway 86 when it drifted to the right side of the road and rolled down an embankment.

El Centro resident Alezia Carmona, 22, died in the crash, according to the Riverside County Coroner's office. A second person suffered major injuries in the crash.

The CHP released a surveillance photo of a Pontiac Aztek that was at the scene. It wasn't involved in the crash, but investigators say its driver may have seen it occur.

The Pontiac was getting onto Highway 86 from Dillon Road when the Maxima passed by along the right shoulder shortly before the crash, according to the CHP.

As the Maxima passed the Pontiac, the SUV's driver stopped briefly before continuing on Highway 86.

The cause of the crash is under investigation and drugs and alcohol haven't been ruled out as factors, according to the CHP.